Trolley stand or base.



G. J. GETERMAN. TROLL'EY sum) 0R BASE. APPLIUAI'ION FILED JUNE 4, 1908.

91 2,557; Patented Feb.. 16, 1909.

UNITED STATES PATENT Frien- CHARLES J. GETERMAN, OF CANTON, OHIO,ASSIGNOR TO JOHN E. MCLAIN, OF CANTON, OHIO.

TROLLEY STAND OR BASE.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Application filed June 1908. Serial No. 436,729.

To all whom it may concern:

Be it known that 1, CHARLES J. GETERMAN, a citizen of the United States,residing at Canton, in the county of Stark and State of Ohio, haveinvented certain new and useful Improvements in Trolley Stands or Bases,of which the following is a specification, reference being had thereinto the accompanying drawings.

This invention relates to devices known in the art as trolley stands,devices of this class being employed to support the trolley poles uponthe roofs of cars.

The object of the invention is to provide improved apparatus of thecharacter de scribed.

The invention can be best set forth in connection with the accompanyingdrawings, in which,

Figure l is a perspective View of the stand, showing it in sideelevation; Fig. 2 is a per spective View of the rotary portion of thestand, viewed from the bottom; Fig. 3 is a perspective view of the topof the base. Fig. at is a vertical central section of the stand. Fig. 5is a perspective view of a portion of the trolley carrier. Fig. 6 is aside elevation of a link.

Referring to the drawingsthe apparatus comprises a base A upon which ismounted a rotatable support B. From the support B, upon one sidethereof, extends a rod G upon which is mounted a combined elevating andbutling spring D. At the outer end of the spring an abutment or crosshead E slides upon the rod 0, while at the inner end of the spring anabutment or cross head F slides upon the rod.

Pivoted upon the rotatable support D is a trolley pole carrier G andsuitable con nections are provided between the sliding abutments orcross heads referred to and the trolley pole carrier whereby the springD is compressed from either end, the reaction of the abutment againstthe spring tending to compress the spring from its inner end as the freeend of the trolley pole is depressed, while, when the pole is at or nearits vertical position, the abutment E compresses the spring from itsouter end and a butting action to restrain the pole when the trolleyjumps the wire is efiected. At the outer end of the rod is located astop H for the outer abutment, this being shown in the present instanceas a pair of lock nuts.

The base A is secured to the top of a car in any suitable manner and isprovided with a boss 1 within which is an aperture 2 having conicalwalls as shown and forming one part of a conical bearing.

The rotatable support B comprises a coneshaped roller bearing adapted toengage with the walls of the aperture 2. The rollers 3 of this bearingare arranged about the stud 4t, projecting from the bottom of the rotarysupport, in any suitable and well known manner. The support B is held inposition on the base A by means of a nut 7 screwed on to the end of thestud a. Surrounding the bearing is a collar 8 which extends from thebottom of the rotary support and, when the rotary support is in positionupon the base, this collar projects down about the outside of the boss 1thereby forming a joint which protects this bearing from dust. At theupper part of the rotary portion B are provided lugs 9 and 10 throughwhich extends the pin 11 upon which is pivoted the trolley pole carrieror socket G.

The trolley pole carrier is bifurcated at its lower end to form the legs12 and 13 which extend outside the rotary support upon opposite sidesthereof. The upper end of the trolley pole carrier comprises a socketfor the reception of the pole 1 1. In the structure shown, onehalf ofthis socket is formed integrally with the legs of the carrier, the otherhalf 15 of the socket being bolted thereto, as shown.

It will be noted that the carrier G is pivoted to the rotary support Bat a point above the center line of the spring D. Below this pivot forthe carrier G, rods 16 and 17 are pivoted to the outside of the legs 12and 13 and extend to and through the outer abutment IQ and have heads ornuts 16, 17 respectively, on the outside of said abutment. These rodsform the connections between the trolley carrier and the abutmentwhereby the spring D operates to cushion and re strain the movement ofthe trolley pole when the trolley leaves the wire. Also below thepivotal point of the carrier G, links 18 and 19 are pivoted to theinsides of the legs 12 and 13 while the other ends of these links arepivoted to the inner abutment F.

It is desirable that the abutment E should not be moved as the trolleypole moves back and forth under the influence of the spring D actingthrough the instrumentality of the abutment F. It is desirable that thisabutment E should be brought into action and cause the spring D to actas a bufier to limit the movement of the trolley pole when the trolleyjumps the wire, when the pole is at or near its vertical position.Accordingly a lost motion connection is provided, between the legs 12and 18 and the abutment E. This is accomplished in the structure shownby permitting the rods 16 and 17 to slide to the right (see Fig. 1)through the abutment E, the nuts on the ends of the rods coming againstthe outside of the abutment as the rods are moved to the left, carryingthe abutment with them and compressing the spring. It is also desirablethat the trolley carrier shall move backwardly independently of theabutment F after a certain point has been reached. A lost motionconnection is therefore provided between the legs 12 and '13 and theabutment F, which is shown as consisting of the pins 20 and 21 whichengage in the slots 22 and 23. When the trol ley jumps the wire theslots 22 and 23 will permit the carrier to move rearwardly independentlyof the abutment F after the abutment has moved to its innermost positionand the abutment E will be moved against the spring which will opposeits movement and give the required bufiing action.

It is believed that the operation of the device will be obvious from theforegoing description. When the free end of the trolley pole isdepressed to the left, as viewed in Fig. l, and the trolley placedupon-the wire,

the abutment F will be moved outwardly, compressing the spring D whichwill then tend to elevate the trolley and press the same against thewire. The abutment it will be unmoved as indicated. If, however, thetrolley jumps the wire the trolley pole on attaining or nearing itsvertical position will be'retarded by reason of the reaction of the.

spring D against the inward movement of the abutment E, the spring,under these circumstances acting as a buffer sprin What I claim is 1. Ina trolley stand, the combination with a rotary support, of a combinedelevating and buffer spring, a support for said spring extending at oneside from said rotary sup port, a sliding abutment at the outer end ofsaid spring adapted to compress said spring from its outer end, asliding abutment at the inner end of said spring adapted to compresssaid spring from its inner end, a trolley pole carrier pivoted upon saidrotary support, links connecting the said sliding abutment at the innerend of said spring with said trolley pole carrier, and connectionsbetween the said sliding abutment at theouter end of said spring andsaid trolley pole carrier.

2. In a trolley stand, the combination with a rotary support, of a rodextending at one side therefrom, a combined buffer and elevating springmounted upon said rod, an

abutment sliding on said rod at the outer end of said spring, anabutment sliding on said rod at the inner end of said spring, a trolleypole carrier pivoted upon said rotary support, connections between thesaid abut a rotary support, of a rod extending at.

one side therefrom, a combined buffer and elevating spring mounted uponsaid rod, an abutment sliding on said rod at the outer end ofsaidspring, an abutment sliding on "ilCl rod at the inner end of said sprina trolley pole carrier pivoted upon said rotary support, connectionsbetween the said abutment at the outer end of said spring and saidcarrier and connections between said sliding abutment at the inner endof said spring and said carrier comprising links and lost motionconnections.

-l-. In a trolley stand, the combination with a rotary support, of a rodextending at one side thereit'rom, a combined 'bufler and elevatingspring mounted upon said rod, an abutment sliding on said rod at theouter end of said spring, an abutment sliding'on said rod at the innerend of said spring, a trolley pole carrier pivoted upon said rotarysupport, connections between the said abutment at the outer end of saidspring and said carrier and connections between said sliding abutment atthe inner end of said spring and said carrier and comprising links andpin and-slot connections.

In a trolley stand,lthe combination with a rotatable support, of a rodextending therefrom at one side, a combined buffer and elevating springupon said rod, an abutment sliding upon said rod at the outer end ofsaid spring, an abutment sliding upon-said rod at the inner end of saidspring, a bifurcated trolley pole carrier pivoted upon said support andhaving its legs extending upon opposite side of said rotatable support,connections between the abutment at the outer end of said spring andsaid carrier, the said connections being pivoted to the sides of saidlegs, and links connecting the said abutment at the inner end of saidspring, the said links being pivoted to said legs upon the oppositesides thereof from the aforesaid connections between the outer abutmentand said legs.

6. In a trolley stand, the combination with a rotatable support, of arod extending therefrom atone side, a combined buffer and elevatingspring upon said rod, anabutment sliding on said rod at the outer end ofsaid spring, an abutment slidingon said rod at the inner end of saidspring, a bifurcated trolley pole carrier pivoted to said support andhaving its legs extending upon opposite sides thereof, links connectingsaid abutment at the inner end of said spring with said legs, said linksbeing pivoted upon the inner sides of said legs, and connections pivotedto the outsides of said legs and eX- tending between said abutment atthe outer end of said spring and said legs.

7. In a trolley stand, the combination of base, a rod secured to thebase, a sliding abutment mounted on the outer end of the rod, a slidingabutment mounted on the inner end of the rod, a combined elevating andbufier spring located between the said abutments and adapted to becompressed from each end, a trolley pole carrier pivotally secured tothe base at a point above the center of the spring and connectionsextending between the said carrier and the said abutment on the outerend of the rod for sliding the last mentioned abutment when the polerises to a predetermined height.

8. In a trolley stand, the combination of a base, a support rotatablethereon, a rod, a sliding abutment on the outer end of the rod, a secondsliding abutment also mounted on the rod, a combined elevating andbutter spring surrounding the rod and located between the saidabutments, stops for limiting the outward movement of the outerabutment, a bifurcated trolley pole carrier pivoted to the said base ata point above the center of the spring and links pivoted to the legs ofthe carrier and to the outer abutment and arnnged to move the abutmentwhen the trolley is at or near its vertical position.

9. In a trolley stand, the combination of a base, a rotatable supportthereon, a rod eX- tending from one side of said support, a slidingabutment on the outer end of the rod, a sliding abutment on the innerend of the rod, a combined elevating and bufier spring surrounding therod and located between the abutments, a stop for limiting the outwardmovement of the outer abutment and a trolley pole carrier pivoted tosaid support, said carrier connected with said in ner abutment tocompress said spring from its inner end for pressing the trolley againstthe wire and connected with said outer abutment to compress the springfrom its outer end when the trolley pole is at or near its verticalposition.

In testimony whereof I affix my signature, in the presence of twowitnesses.

CHARLES J. GETERMAN. Witnesses C. A. CocHENoUR, H. A. STALEY.

